Abstract: A sense amplifier, a memory and a method for controlling the sense amplifier are provided. The sense amplifier includes: an amplification module, arranged to read data in a memory cell; and a control module, electrically connected to the amplification module. In a first offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a first inverter and a second inverter, and each of the first inverter and the second inverter is an inverter an input terminal and an output terminal connected to each other; and in a second offset compensation stage of the sense amplifier, the control module is arranged to configure the amplification module to include a current mirror structure.

Abstract: Disclosed are a system and method for providing a missed call alert. The system for providing the missed call alert includes: a call access module configured to receive a missed call calling signalling from a core network; a signalling identification module configured to analyse the missed call calling signalling, and acquire the call type of the missed call calling signalling, wherein the call type includes: a type of voice call and a type of video call; and an alert issuing module configured to send missed call alert information to the called party, wherein the missed call alert information includes the call type.